Browse free open source C# Libraries and projects below. Use the toggles on the left to filter open source C# Libraries by OS, license, language, programming language, and project status.

  • Auth0 for AI Agents now in GA Icon
    Auth0 for AI Agents now in GA

    Ready to implement AI with confidence (without sacrificing security)?

    Connect your AI agents to apps and data more securely, give users control over the actions AI agents can perform and the data they can access, and enable human confirmation for critical agent actions.
    Start building today
  • Grafana: The open and composable observability platform Icon
    Grafana: The open and composable observability platform

    Faster answers, predictable costs, and no lock-in built by the team helping to make observability accessible to anyone.

    Grafana is the open source analytics & monitoring solution for every database.
    Learn More
  • 1
    jni4net

    jni4net

    Fast, object oriented, intraprocess bridge between JVM and CLR

    Fast, object oriented, intraprocess bridge between JVM and CLR
    Downloads: 5 This Week
    Last Update:
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  • 2

    WirelessAPI

    A c# library wrapping native Windows wlan api (wlanapi.dll)

    This was my small project I did while learning P/Invoke in C#. I am aiming to wrap whole wlanapi.dll (native Windows Wi-Fi API) in easy to use C# library. As for now there is a set of classes to use Hosted Access Point. As this is my first project I decided to publish, any pointers, advice or constructive criticism is welcome.
    Downloads: 4 This Week
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  • 3
    NeuronDotNet is a neural network engine written in C#. It provides an interface for advanced AI programmers to design various types of artificial neural networks and use them.
    Downloads: 1 This Week
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  • 4
    .Net Runtime Library for Delphi

    .Net Runtime Library for Delphi

    This is the best library to work with the .Net framework from Delphi.

    The .Net Runtime Library for Delphi (CNClrLibrary) is the best library to work with .Net framework and .Net libraries from Delphi. It is designed to provide a way to interact with applications written in anyone of the .Net languages (such as C#, Visual Basic.Net, Delphi.Net, JScript.Net, etc) from Delphi. CNClrLibrary allows Delphi to use .Net libraries without the need for registry entries, COM registrations, or changes to the .NET libraries. Competitive Advantages: - No extra dll is required when deployed. - No COM registration of .Net Libraries is required when deployed. - There are tools to generate your .Net Libraries into Delphi pas files. - Allows Delphi to consume .Net libraries as if they were native code. - Full access to .Net Framework Class Library. - Easy to use. CNClrLibrary can do so much: - Access .Net Framework Class Library. - Access Third Party .Net Libraries. - Access Your .Net Libraries. - etc Latest Version: 6.0.7.0
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    Downloads: 3 This Week
    Last Update:
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  • Desktop and Mobile Device Management Software Icon
    Desktop and Mobile Device Management Software

    It's a modern take on desktop management that can be scaled as per organizational needs.

    Desktop Central is a unified endpoint management (UEM) solution that helps in managing servers, laptops, desktops, smartphones, and tablets from a central location.
    Learn More
  • 5
    Space3d

    Space3d

    C# graphics library used for 3D modeling, built with OpenGL/OpenTK

    The Graphics Library is built on top of OpenTK, the C# library that wraps OpenGL. The intended clients are technical and engineering graphics applications that require three-dimensional visualization tool. The implementation draws a scene on separate working thread, optionally, the thread-updater may be invoked. The Space3d Library uses Recursive Composition design pattern. The hierarchy by reference, built into the component, plays a dual role in modeling three-dimensional space: first, it provides a control over a lifetime of the object cluster; second, it mirrors a subordination of the object coordinate systems. All the project libraries are built with Visual Studio, .NET Framework 4.7.1. The Graphics.sln and Space3d.sln solutions contain test applications, called UnitTest, featuring the library capabilities.
    Downloads: 2 This Week
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  • 6
    dotNetRDF is a .Net Class Library for working with RDF and SPARQL programatically built with C# 3 for the .Net Framework 3.5/4.0/Silverlight 4 and WIndows Phone 7. It provides a simple object model for representing RDF, SPARQL Queries and Updates and understands all common RDF and SPARQL syntaxes. Extensive documentation is available on the website and support is available via the mailing lists.
    Downloads: 2 This Week
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  • 7

    OpenCL .Net

    .Net bindings for OpenCL 1.2

    This project attempts to do two things. First, it provides bindings to the OpenCL API that mirror the OpenCL 1.1 spec as closely as possible. (Preliminary OpenCL 1.2 support is available in SVN)Second, it provides a higher level abstraction of the API that's more .Net-like.
    Downloads: 1 This Week
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  • 8
    AL-IV

    AL-IV

    ALFOUR Programming language. Simple, safe, power, multi-platform.

    A programming language AL-IV (ALFOUR) is a high-level imperative object oriented programming language with minimal introduction level, easy porting to any platform claiming a very high level of safety and stability, with a controllable level of code protection, high efficiency of an executable code, full independence from a target platform, minimal enter level.
    Downloads: 3 This Week
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  • 9
    DSP Lab

    DSP Lab

    Digital Signal Processing Simulation

    DSP Lab is a digital signal processing simulation application created to simulate and visualize process of sampling and filtering analog signal using DSP system. This application is created to provide as a tool for educator and student to visualize and understand DSP system. Source code is available at https://payhip.com/b/9mPY
    Downloads: 3 This Week
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  • Intelligent Automation Solutions Built for Modern Finance Teams Icon
    Intelligent Automation Solutions Built for Modern Finance Teams

    We do CFO stuff.

    Digitally transform your business with workflow automation and integrated payment solutions. Digitally store and secure your data with advanced search and accessibility features that keeps your documents at the tip of your team’s fingers.
    Learn More
  • 10
    Game Toolbox is a C# assembly designed to facilitate the creation of games and game prototypes. It contains no graphics code, does not depend on XNA, and is Mono-compatible. It provides implementations of A*, GOAP, a genetic algorithm, and more.
    Downloads: 3 This Week
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  • 11
    HTML++

    HTML++

    Object-oriented generation of HTML code on .NET 4 Client Profile

    This library allows you to generate HTML pages directly from your code in a strongly typed, compositional, safe and concise manner. Requires the .NET Framework 4 Client Profile only. It is licensed under LGPL, which means that you may use it in commercial products. The project logo is from Mariano Real, who kindly provided it under a Creative-Commons license.
    Downloads: 3 This Week
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  • 12

    Java Jar Manager

    Classpath Jar manager

    Simple program to manage libraries jar.
    Downloads: 3 This Week
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  • 13
    Project EVE AI
    EVEAI is a Deep Learning Library based on python Keras and Tensorflow. EVEAI dll allows embedding inference images from keras models into user-written applications. Under Windows, the EVEAI training Tool provides services to train user specific image datasets and EVEAI dll provides services to existing Windows applications which support inference images. Please visit https://github.com/Hommoner/EVEAI for more information.
    Downloads: 3 This Week
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  • 14

    vJoyWrapper

    A .NET wrapper library for the vJoy virtual joystick driver

    This is a .NET wrapper library for vJoy, a virtual joystick driver for Windows. It only works with the PPJoy-compatible versions of vJoy. http://sourceforge.net/projects/vjoystick/ Some code borrowed from PPJoyWrapper http://sourceforge.net/projects/ppjoylib/ See the wiki for usage instructions.
    Downloads: 3 This Week
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  • 15
    sharpPDF is easy-to-use c# library to generate PDF on the fly. It allows to save pdf files or get binary streams in output(for example, usable in ASP.NET).
    Downloads: 1 This Week
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  • 16
    Neural Libs

    Neural Libs

    Neural network library for developers

    This project includes the implementation of a neural network MLP, RBF, SOM and Hopfield networks in several popular programming languages. The project also includes examples of the use of neural networks as function approximation and time series prediction. Includes a special program makes it easy to test neural network based on training data and the optimization of the network.
    Downloads: 2 This Week
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  • 17
    RSPbzip2
    This is bzip2/bzip3 compression/uncompression win32 and win64 dll, now with support to multi-threads
    Downloads: 2 This Week
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  • 18

    Rpg.NET

    Performance enhancement API for RPG Maker XP, VX, VXA.

    Rpg.NET is an API built using the .NET Framework for both improving performance and enhancing the RPG Maker series (XP, VX, and VXA). Contained within are various functions and classes that extend the ability of RPG Maker in areas such as graphics, audio, and Windows API interop. Included is a Ruby script that is the wrapper around the library, so it can be used as any other script within your game.
    Downloads: 2 This Week
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  • 19

    ULS

    A lexical analyzer generator that makes the class source code.

    ULS is a class library for creating lexical analyzer from language specification file. It's provided as C/C++/C# and Java (class) libraries with a few of tools on Linux/Windows platform.
    Downloads: 2 This Week
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  • 20

    ADO.Net DAC for Delphi

    Fastest and most reliable database connectivity solutions for any DB

    ADO.Net Data Access Components (DAC) for Delphi is the fastest and most reliable database connectivity solutions for any database using ADO.Net technology in Delphi. It provides data access to data sources such as SQL Server, Oracle and to data sources exposed through OLE DB and ODBC using ADO.Net data provider framework. ADO.Net DAC for Delphi is an enterprise solution with highest performance and unlimited possibilities. Data-sharing consumer applications can use ADO.NET DAC for Delphi to connect to these data sources and retrieve, handle, and update the data that they contain. The ADO.Net DAC for Delphi consists of the following library of Data Access components: - SqlClient Data Access Components. - OracleClient Data Access Components. - ODBC Data Access Components. - OLE DB Data Access Components - Virtual Table Components. Pre-requisite: Net Runtime Library for Delphi Enterprise Edition (https://crystalnet-tech.com/RuntimeLibrary/Download.aspx)
    Downloads: 1 This Week
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  • 21
    Accord.NET Framework

    Accord.NET Framework

    Scientific computing, machine learning and computer vision for .NET

    The Accord.NET Framework provides machine learning, mathematics, statistics, computer vision, computer audition, and several scientific computing related methods and techniques to .NET. The project is compatible with the .NET Framework. NET Standard, .NET Core, and Mono.
    Downloads: 1 This Week
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  • 22
    RSPpmp3

    RSPpmp3

    multi-media player updated yearly

    Win64/Win32 DLL and C# sample project (soon C project too (possible)) to play all audio and video files that are supported by Libav library (this release is using the new Libav libraries available (14/nov/2022)), also now a stripped version with only standard audio (Mp3, Ogg, AAC, Opus), is available, it is marked as no Libav version Also after 25/nov/2024 some of the wav effects are being converted to Edge plugins, with the valuable help of Copilot, the license of the plugins is MIT With the help of Microsoft Copilot we are adding Lucid Mode video enhancement
    Downloads: 1 This Week
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  • 23

    .Net VCL for Delphi

    Comprehensive library of .Net UI Controls and components for Delphi.

    The .Net Visual Component Library (VCL) for Delph is the most comprehensive Library of .Net WinForms UI Controls and components for Delphi. Includes over 50 essential .Net UI controls and components which are available in Delphi such as Active Directory components, Internet components, printing components, Xml components, Dialog components, UI controls, Grid controls, and many more for building powerful line-of-business Windows applications in Delphi. Built on solid .Net Framework and advanced .Net functionalities, .Net VCL for Delphi provides innovative and advanced quality UI controls and components for Delphi that let you build powerful business desktop application effortless in timely fashion. Tightly integrated with Embarcadero Delphi, you can use all features available in the Embarcadero Delphi IDE for your development tools and start working with UI instantly. The .Net VCL for Delphi consists of: - .Net Component Suite for Delphi - .Net Control Suite for Delphi
    Downloads: 1 This Week
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  • 24
    AAImageViewer + AAImageLib
    AAImageViewer + AAImageLib is a simple application which can Read and Write all HDI Dune image formats (AAI, BMP, PNG, JPG). It includes a .NET library to read and write AAI image format.
    Downloads: 1 This Week
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  • 25

    ChecksumValidation

    Validation of IBANs, bank accounts, credit cards, identity cards

    ChecksumValidation is a framework for validation of international bank accounts (IBAN), credit card numbers, german identity cards, german passports and for german bank accounts. Validation is performed by computing checksums. Checksums for german bank accounts are maintained and documented by www.bundesbank.de. In sum, ChecksumValidation implements round about 150 algorithms. It may freely be used under GNU GPLv3 licence (see below). ChecksumValidation is implemented in Microsoft .NET 2.0. It consists of: - ChecksumValidation: a class library (DLL) for in-process use - ChecksumSoapServer: a SOAP interface - ChecksumTcpServer: a TCP interface implementing a domain-specific language (DSL) for validation - ChecksumComServer: a COM interface - ChecksumClient: a test utility - ChecksumUnitTest: a 100% covering NUnit test - ChecksumUtility: a command-line tool for helper functions
    Downloads: 1 This Week
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